Romano wrote:I'm looking for both commentary and story based on the Dhammapada Sarvāstivādin or/and Dharmaguptaka (translated in english).

The purpose is to compare the stories between the early schools. If you know where I can find it.

I'm not sure that there are any existing commentaries other than the Pāli. An overview of the extant versions of Dhammapada texts is given by Ven. Ānandajoti here: A Study of the Dhammapada Collection.

Here's a multilingual presentation of the Udānavarga (the English translation by William Woodville Rockhill is from the 1880s and is therefore quite dated).